<template>
  <el-container class="home-container">
    <el-header>
      <div>
        <img src="../assets/64.png" alt="" />
        <span>旅行管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button></el-header
    >
    <el-container>
      <el-aside :style="isCollapse?'':'min-width:150px'" :width="isCollapse?'64px':'20%'" >
        <div class="toggle-button"  @click='toggleCollapse()'>|||</div>
        <el-menu
          router
          :default-active="activeItem"
          :collapse-transition="false"
          :collapse ="isCollapse"
          unique-opened
          background-color="#333744"
          text-color="#fff"
          active-text-color="#ffd04b"
        >
          <el-submenu
            :index="item.id + ''"
            v-for="item in menulist"
            :key="item.id"
          >
            <template slot="title">
              <i :class="iconObj[item.id]"></i>
              <span>{{ item.authName }}</span>
            </template>
            <el-menu-item @click="saveNavState(subItem.path)" :index="subItem.path" v-for="subItem in item.children" :key="subItem.id"
              >
              <i class="el-icon-menu"></i>
              <span>{{subItem.authName}}</span>
            </el-menu-item>
          </el-submenu>
        </el-menu>

        <!-- 一下注释为菜单范例 -->
        <!-- <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#ffd04b"
        >
          <el-submenu index="1">
            <template slot="title">
              <i class="el-icon-location"></i>
              <span>导航一</span>
            </template>
            <el-menu-item-group>
              <template slot="title">分组一</template>
              <el-menu-item index="1-1"
                ><i class="el-icon-location"></i>
                <span>选项1</span>
                </el-menu-item>
              <el-menu-item index="1-2">选项2</el-menu-item>
            </el-menu-item-group>
            <el-menu-item-group title="分组2">
              <el-menu-item index="1-3">选项3</el-menu-item>
            </el-menu-item-group>
            <el-submenu index="1-4">
              <template slot="title">选项4</template>
              <el-menu-item index="1-4-1">选项1</el-menu-item>
            </el-submenu>
          </el-submenu>
          <el-menu-item index="2">
            <i class="el-icon-menu"></i>
            <span slot="title">导航二</span>
          </el-menu-item>
          <el-menu-item index="3" disabled>
            <i class="el-icon-document"></i>
            <span slot="title">导航三</span>
          </el-menu-item>
          <el-menu-item index="4">
            <i class="el-icon-setting"></i>
            <span slot="title">导航四</span>
          </el-menu-item>
        </el-menu> -->
      </el-aside>
      <el-main>
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      menulist: [],
      iconObj:{
          '125':'iconfont icon-user',
          '103':'iconfont icon-tijikongjian',
          '101':'iconfont icon-shangpin',
          '102':'iconfont icon-danju',
          '145':'iconfont icon-baobiao'
      },
      isCollapse:false,
      activeItem:''
    }
  },
  created() {
    this.getMenuList()
    this.activeItem = window.sessionStorage.getItem('activePath')
    
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    toggleCollapse(){
       this.isCollapse=!this.isCollapse
    },
    saveNavState(path){
       window.sessionStorage.setItem('activePath',path)
       this.activeItem= path
    },
    //获取左边菜单
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    },
  },
}
</script>

<style scopted>
.home-container {
  height: 100%;
  display: flex;
}

.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 25px;
}
.el-header > div {
  display: flex;
  align-items: center;
}
.el-header > div > span {
  margin-left: 15px;
}
.el-aside {
  background-color: #333744;
}
.el-aside .el-menu{
    border-right:none
}
.el-main {
  background-color: #eaedf1;
}
.iconfont{
    margin-right:10px 
}
.toggle-button{
    background-color: #4a5064;
    font-size:10px;
    line-height: 24px;
    color: white;
    text-align:center;
    letter-spacing: 0.2em;
    cursor:pointer 
}
</style>